Drilling and kindred machine.



J. T. MORRISSEY.

DRILLING AND KINDRED MACHINE.

APPLICATION rum) MAY 6, 1910.

1,071,776, Patented Sept. 2, 1913.

F192 F1 3. F194.

WITNESSES. 'Nl/E/VTOR AT A/EY ITED S i; ATES PATENT OFFICE.

JAMES T. MORRISSEY, 0F SOUTHBRIDGE, MASSACHUSETTS, ASSIGNOR T0 AMERICANOPTICAL COMPANY, OF SOUTHBRIDGE, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

DRILLING AND KINDRED MACHINE.

Specification of Letters Patent.

Patented Sept. 2, 1913.

Application filed May 6, 1910. Serial No. 559,795.

'1?) all whom it may concern:

Be it known that I, J AMES T. MORRISSEY, a citizen of the United States,and a resident of Southbridge, in the county of W'orcestor and State ofMassachusetts, have invented certain new and useful Improvements inDrilling and Kindred Machines, of which the following is aspecification.

My invention relates to improvements in machines utilizing drilling,abrazing or cutting tools, in which means are employed to convey aliquid from a suitable reservoir to the point of contact of the tool andthe material being operated upon, for the purpose of assisting theoperation of the tool in the work; and the object of my improvement isto provide automatic means for regulatin and controlling the flow ofsaid liquid. attain this object by the construction illustrated in theaccompanying drawing in which:

Figure 1 represents a front elevation of a preferred form of myinvention, showing the regulator attached to a lens drilling machine.Fig. 2 represents a sectional elevation showing the controlling valveclosed and the contact plate at the point of initial contact with theregulator contact head. Fig. 3 represents a sectional elevation showingthe controlling valve open and the contact plate at point of releasewith the regulator head. Fig. 4 represents a sectional elevation showingthe controlling valve closed and the regulator head sprung out ofcontact with the contact plate. Fi 5 represents a sectional view of thecontrolling valve, enlarged.

Similar figures refer to similar parts throughout the several views.

Referring to the drawings: a reservoir 1 attached to the standard, orotherwise socured to the machine, has an opening or valve seat 2 in thebottom, and an opening 3 in vertical alinement withsaid valve seat 2 isprovided in the upper walls thereof, and adapted to receive theregulator stem 4, the edges of said openings 2and 3 actin as bearingsfor the said re ulator stem. he regulator stem 4 is a 1'0 or wire havinga contact head 5 at itsupper end, a spring section 7 below and adjacentto the contact head, a vertical slot 8 adapted to engage a set screw 9in the walls of the reservoir, which controls the vertical movement ofthe regulator stem, and an internal screw threaded bore 10, (see Fig. 5)extending upwardly a short distance from the lower end and adapted toreceive the threaded shank of the guide wire. The guide wire 11,composed preferably of a ductile material havinglittle tendency tospring, has an enlarged shoulder 12, and a screw threaded shank 13,adapted to screw into the internal bore of the regulator stem. A valve14; of cork or other yielding material, and adapted to fit in the valveopening 2 in the reservoir is held on the threaded shank 13 of the guidewire, between two washers 15 and 16. A spiral spring 17 wound on theregulator stem 4 has one end in contact with the bottom of the reservoirand the other retained by a pin 18, inserted in the re ulator stem. Theregulator stem is operate by a contact plate 19 secured to the lever 22,which raises and lowers the drill. To assemble the regulator, washer 16,valve 14 and washer 15 are slipped on shank 13 of the guide wire in theorder named, and the threaded shank 13 screwed into the internal bore 10until the valve is securely gripped. Spring 17 is placed inside thereservoir with its internal opening in alinement with openings 2 and Thecontact head 5 is then slipped up through the valve opening 2, thespring 17, and the opening 3 in the up er walls of the reservoir, tillthe valve is seated in the valve opening, set screw 9 is then screwed inthrough the vertical slot 8, spring 17 is pushed down and the pin 18inserted through the regulator or valve stem, compressing said springbetween said pin 18 and the bottom of the reservoir, and the contactplate 19 adjusted in position in.alinement with contact head 5 of theregulator stem.

The operation is as follows: When the drill spindle is drawn down towardthe ma terial to be drilled, the contact plate 19 on the spindle armcomes in contact with the contact head 5, as shown in Fig. 2, and pushesdown the regulator stem against the action of the spring 17, the valveis unseated and an amount of liquid escapes through the valve openingand is carried downjhe guide wire 11 to the work at the point of contactwith the tool. As the s indle descends, the contact plate 19 W ichtravels on an are about the point- 6 as a center, will release thecontact head and the regulator stem will be immediately car ried up bythe action of the spring 17 until which spring will return the stem toits vertical position when the contact plate has passed above thecontact head on the stem.

As above described, it'will be seen that the amount of liquid escapingthrough the valve is dependent on the length of time the contact plate19 is in contact with the contact head 5 of the regulator stem, whichcan be regulated by the adjustment of the said contact plate by means ofthe screws 20 and the elongated holes 21.

Having now described my invention, what I claim as new, and desire tosecure by Letters Patent is 1. In a machine of the character dea valvefor controlling the flow therefrom, a shiftable tool mounted adjacentthe valve, and means adapted to engage and operate .the valve uponmovement of the tool in one 'directionand to engage the valve withoutscribed, a liquid retainer, a valve therefor, an operatin tool, meansfor advancing and retracting t e tool, and means adapted to temporarilyengage the valve and hold the same open for a limited period during theadvance of the tool, said means being constructed to release the valvebefore the tool is advanced into operative position.

2. In a machine of the character described, a liquid retainer, a valvein the retainer, an operating tool, means for advancing and retractingthe tool, and means adapted to successively open and close the valve asthe tool is advanced toward the work.

3. In a machine of the character described, a liquid retainer, a valvein the retainer, an operating tool, means for advancing and retractingthe tool, means for opening thevvalve as the tool is advanced, and meansadaptedto close the valve before the tool penetrates the work. i

4. In a machine of the character described, an operating tool, means foradvancing and retracting the operating tool, a liquid retainer, a valvein the retainer, means on the tool operating means adapted to open thevalve as-the tool is advanced toward "the work, and means adapted toclose the valve before the tool penetrates the work.

5. In a machine of the character de scribed, an operating tool, meansfor advancing and retract-ing the tool, a liquid retainer, a valve inthe retainer, a valve stem, a contact on the tool operating meansadapted to displace the valve stem and open the valve as the tool isadvanced toward the work, and means to close the valve vancing andretracting the tool, a liquid retainer, a valve in the retainer, a valverod vancing and retracting thet'ool, aliquid retainer, a valve in theretainer, a valve stem, means on the tool operating means ada ted todisplace the valve stem longitudinally and laterally when the tool isadvanced toward the work, and means adapted to reseat the valve when thevalve ;stem has been released by the tool operating -means.

8. The combination with a reservoir, of

operating the same upon movement of the 'tool'in the opposite direction.

Ta shiftable tool mounted adjacent the valve, and means shiftable withthe tool for temporarily opening the valve upon movement of the tool inone direction without disturbing the valve upon movement in the oppositedirection.

10. In a machine of the character described, an operating tool, meansfor advancing and retracting the tool, a reservoir scribed, an'operating tool, means for advancing and retracting the operating tool, areservoir having valve and guide openings, a valve in t e valve opening,a valve stem in the guide opening, yielding means tending to seat thevalve, a guide leading from the valve to the operating point, and acontact on the tool operating means adapted to engage the valve stem asthe tool is advanced toward the work,

12. The combination with a reservoir, of,"

a controlling valve therefor, a shiftable tool arrangement of partsbeing such that the abutment will engage the valve to operate the sameupon movement of the tool 1n the advance direction while leaving thevalve undisturbed as the tool moves in the opposite direction.

13. The combination with a reservoir, of an outlet valve therefor, meansfor normally holding and forcing the valve into closed position, a valvestem projectin from the valve, a shiftable tool mounte adjacent thevalve stem said valve stem bein formed from resihent material, and an autment carried by and movable with the tool, said abutment being sodisposed as to temporarily engage the valve stem on advance movement ofthe tool to force the valve open and then to permit the valve stem tospring out of engagement therewith and thus release the valve before thetool has reached its limit of advance movement.

In testimony whereof, I aifix my signature in the presence of twowitnesses.

JAMES T. MORRISSEY. Witnesses:

CHARLES I. KING, RALPH E. THOMPSON.

